Re: ever had 1GB+ kern.log (and syslog) from changing monitors?

From	"Carlos E.R." <robin_listas@es.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: ever had 1GB+ kern.log (and syslog) from changing monitors?
Date	2026-01-19 22:46 +0100
Message-ID	<9bl24mx42m.ln2@Telcontar.valinor> (permalink)
References	(10 earlier) <10kjht7$3p7to$4@dont-email.me> <h0204mx7r3.ln2@Telcontar.valinor> <10kkrjr$2dshr$1@news1.tnib.de> <v6o14mx916.ln2@Telcontar.valinor> <10klgh6$2ggek$1@news1.tnib.de>

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On 2026-01-19 15:53, Marc Haber wrote:
> "Carlos E.R." <robin_listas@es.invalid> wrote:
>> On 2026-01-19 09:56, Marc Haber wrote:
>>> "Carlos E.R." <robin_listas@es.invalid> wrote:
>>>> Syslog, before systemd intervened, managed to capture all messages just
>>>> fine.
>>>
>>> That was usually done by piping dmesg's output (the kernel ring
>>> buffer) to syslog later during system startup once syslog is running.
>>>
>>>> I am saying that systemd is not passing all the messages to syslog.
>>>
>>> It surely can be configured to do so. File a bug with your
>>> Distribution. The kernel ring buffer still exists.
>>
>> I will have to investigate one day what is going on.
> 
> I bought a new notebook in late 2024 and deliberately didn't install
> syslog. Just to force myself to get more acquainted with journalctl
> since there will be a day when I'll have to fix a server that doesn't
> have syslog. THEN I won't have time to read up on journalctl.

Oh, I can use fine journalctl.
When I report on bugzilla I use that.

However, I do have problems with eliminating from the log the hugely verbose news facility, mail facility, and authpriv. With the concoction I have, some parts disappear, because they are not assigned any facility.

 From one of my bugzillas:

journalctl --boot=-2 --facility=kern,user,daemon,auth,syslog,lpr,uucp,cron,authpriv,ftp,12,13,14,15,local0,local1,local2,local3,local4,local5,local6,local7 > journal_purged

However, notice that several megabytes of messages like this:

      Feb 18 12:17:58 Telcontar sddm[2599]: Initializing...

are also missing. They are facility 1, should not be removed. I know they are fac 1 by comparison with syslog:

    <1.4> 2025-02-24T01:03:30.963177+01:00 Telcontar sddm 2599 - -  Signal received: SIGTERM
     *..... I print the <fac.prio> numbers.

If you need those messages in the log, please advise how to remove mail and news messages from the journal. Grep doesn't work because news messages are multiline.

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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ever had 1GB+ kern.log (and syslog) from changing monitors? Robert Riches <spamtrap42@jacob21819.net> - 2026-01-13 04:57 +0000
  Re: ever had 1GB+ kern.log (and syslog) from changing monitors? c186282 <c186282@nnada.net> - 2026-01-13 00:32 -0500
    Re: ever had 1GB+ kern.log (and syslog) from changing monitors? 🇵🇱Jacek Marcin Jaworski🇵🇱 <jmj@energokod.gda.pl> - 2026-01-13 08:09 +0100
      Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-13 08:16 +0000
        Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-13 11:22 +0100
          Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-13 19:51 +0000
            Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-14 14:42 +0100
              Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-14 20:54 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-14 23:14 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-14 22:36 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-15 14:40 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? The Natural Philosopher <tnp@invalid.invalid> - 2026-01-15 13:54 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-16 04:20 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-16 21:40 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-16 21:03 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-16 22:23 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-16 21:41 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-16 22:53 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-17 20:34 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-17 22:57 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Marc Haber <mh+usenetspam1118@zugschl.us> - 2026-01-18 11:14 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-18 10:44 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 12:50 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-18 21:04 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 23:04 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-19 00:46 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-19 09:42 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Marc Haber <mh+usenetspam1118@zugschl.us> - 2026-01-19 09:56 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-19 14:29 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Marc Haber <mh+usenetspam1118@zugschl.us> - 2026-01-19 15:53 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-19 22:46 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-19 23:05 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-20 02:36 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-20 03:02 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-20 08:37 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-20 14:04 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-20 17:37 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-20 21:01 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-20 20:24 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-20 22:25 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-20 20:36 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-20 23:22 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-19 23:24 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-20 02:39 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-23 05:48 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-23 14:07 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-23 21:19 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-23 22:26 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2026-01-23 21:45 -0800
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Harold Stevens <wookie@aspen.localdomain> - 2026-01-24 04:18 -0600
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-18 21:02 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 23:04 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-16 23:33 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-17 14:33 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-17 20:35 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-17 22:56 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-18 01:51 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 12:55 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-18 21:02 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 23:05 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-19 00:46 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-16 23:30 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-17 14:36 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? The Natural Philosopher <tnp@invalid.invalid> - 2026-01-17 18:25 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-17 20:33 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-18 10:48 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Harold Stevens <wookie@aspen.localdomain> - 2026-01-17 10:23 -0600
              Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Richard Kettlewell <invalid@invalid.invalid> - 2026-01-18 10:43 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 12:59 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-18 21:06 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-18 23:06 +0100
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-19 00:48 +0000
                Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-19 09:44 +0000
        Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-13 11:40 +0000
    Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Robert Riches <spamtrap42@jacob21819.net> - 2026-01-14 03:27 +0000
  Re: ever had 1GB+ kern.log (and syslog) from changing monitors? "Carlos E.R." <robin_listas@es.invalid> - 2026-01-13 11:24 +0100
    Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Nuno Silva <nunojsilva@invalid.invalid> - 2026-01-13 11:43 +0000
    Re: ever had 1GB+ kern.log (and syslog) from changing monitors? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-13 19:52 +0000

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